The Relationship Between “Large” Early/Fast VLF Events and Modal Propagation Nulls

Burch, H.; Moore, R. C.

doi:10.1109/tgrs.2022.3219727

Cited by 3 publications

(2 citation statements)

References 26 publications

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“…For a signal with an ambient and scattered field added at the receiver, Equation 2gives an expression for the waveguide Stokes parameters of the total field in terms of the amplitude and phase of the ambient field, and magnitude and angle of the scattered field, calculated in the manner of Burch and Moore [3]. In practice, the magnitude B of the scattered field may be considered zero before the onset and after the recovery of a VLF event.…”

Section: Scattered Field Polarizationmentioning

confidence: 99%

“…Measurements of the amplitude, phase, and polarization of a propagating very low frequency (VLF) radio wave have been applied to a wide variety of geospace-related events [1]- [3]. When a sudden, localized disturbance occurs in the ionosphere between a VLF transmitter and receiver, the received signal is affected for a period of time, after which it recovers to (nearly) its original value.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Scattered Field Polarization for VLF Remote Sensing of Transient Events

Burch,

Moore

2023

Proceedings of the XXXVth URSI General Assembly and Scientific Symposium – GASS 2023

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Very low frequency (VLF, 3−30 kHz) radio waves can propagate large distances around the globe in the Earthionosphere waveguide and be scattered by transient disturbances to the lower ionosphere. Such scattering enables the VLF remote sensing of lightning-related (as well as other) disturbances to the D-region ionosphere (60−100 km altitude). The polarization of the field scattered by the ionospheric disturbance has not been investigated in detail, primarily because it can be difficult to measure. In this paper, we present a simple, reliable method to accurately calculate the polarization of such a scattered field, and we apply the method to analyze ionospheric VLF scattering events.

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Section: Scattered Field Polarizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%